Collaboration Statistics engine giving error and trying to restart several times

Please have a look at
forum.appian.com/.../kb-1039.html
Checkpointing a Specific Engine : forum.appian.com/.../Configuring_Application_Checkpointing.html

Do check : forum.appian.com/.../Quick_Start_Installation_Guide_for_Windows_and_JBoss.html

"If Appian fails to start properly for any reason, verify that these three files exist and do not have the extensions .undeployed, .isdeploying or .failed:

\\<JBOSS_HOME>\\standalone\\deployments\\appian-mysql-ds.xml.deployed
\\<APPIAN_HOME>\\_admin\\_scripts\\configure\          emplates\\ear\\suite.ear.dodeploy
\\<REPO_HOME>\\ear\\suite.ear.dodeploy "

Hi Abhinav,
Thanks for your response. I followed exactly the same steps which are given in Quick start installation guide and also did Checkpoint after starting the engines.
When I start Jboss it is getting started without any issue and I am able to login to design with default credentials. But when I tried to open Designer it is not displaying anything then I checked the status of engines and found the collaboration statistics engine status is ERROR. Also whenever I try to open designer window that engine is trying to start.
Also I am not able to see Admin console at all.

Can you share the console logs when you try to open the designer.
Remember the default Administrator user cannot access the Appian Administration Console.

Please review forum.appian.com/.../kb-1091.html to resolve this issue?

Hi Sally Mason, I did complete restart but the issue didn't get resolved. As I said previously, until I start application server engines are working fine and displaying status as OKAY. Whenever I start Jboss, Collaboration Statistics engine showing ERROR. Even I completely reinstalled Jboss.

Thanks for confirming - would you be able to attach your server.log for review to help us narrow down the issue?

Thank you @Sally Mason and @Abhinav. The issue is cleared and Appian 16.3 is up and running successfully. The issue is with lack of memory space.

Hi Rajasekhar how could you over come this issue. Im also facing the same issue with 17.2

Hi Rajasekhar

I'm not sure but can you try doing ResetAnalytics, because occasionally the data in the two paired engines get out of sync and need to be re-synced.
And restart engines and jboss server.

please refer to this link - docs.appian.com/.../ResetAnalytics_Script.html

Regards
Vasu J